Semantic Scholar Open Access 2019 37 sitasi

Star cluster catalogues for the LEGUS dwarf galaxies

D. Cook J. Lee A. Adamo H. Kim R. Chandar +119 lainnya

Abstrak

We present the star cluster catalogues for 17 dwarf and irregular galaxies in the HST Treasury Program ‘Legacy ExtraGalactic UV Survey’ (LEGUS). Cluster identification and photometry in this sub-sample are similar to that of the entire LEGUS sample, but special methods were developed to provide robust catalogues with accurate fluxes due to low cluster statistics. The colours and ages are largely consistent for two widely used aperture corrections, but a significant fraction of the clusters are more compact than the average training cluster. However, the ensemble luminosity, mass, and age distributions are consistent suggesting that the systematics between the two methods are less than the random errors. When compared with the clusters from previous dwarf galaxy samples, we find that the LEGUS catalogues are more complete and provide more accurate total fluxes. Combining all clusters into a composite dwarf galaxy, we find that the luminosity and mass functions can be described by a power law with the canonical index of −2 independent of age and global SFR binning. The age distribution declines as a power law, with an index of ≈− 0.80 ± 0.15, independent of cluster mass and global SFR binning. This decline of clusters is dominated by cluster disruption since the combined star formation histories and integrated-light SFRs are both approximately constant over the last few hundred Myr. Finally, we find little evidence for an upper-mass cut-off (<2σ) in the composite cluster mass function, and can rule out a truncation mass below ≈104.5M⊙ but cannot rule out the existence of a truncation at higher masses.

Topik & Kata Kunci

Penulis (124)

D

D. Cook

J

J. Lee

A

A. Adamo

H

H. Kim

R

R. Chandar

B

B. Whitmore

A

A. Mok

J

J. Ryon

D

D. Dale

D

D. Calzetti

J

J. Andrews

A

A. Aloisi

G

G. Ashworth

S

S. Bright

T

T. Brown

C

C. Christian

M

M. Cignoni

G

G. Clayton

R

R. D. Silva

S

S. D. Mink

C

C. Dobbs

B

B. Elmegreen

D

D. Elmegreen

A

A. Evans

M

M. Fumagalli

J

J. Gallagher

D

D. Gouliermis

K

K. Grasha

E

E. Grebel

A

A. Herrero

D

D. Hunter

E

E. I. Jensen

K

K. Johnson

L

L. Kahre

R

R. Kennicutt

M

M. Krumholz

N

N. Lee

D

D. Lennon

S

S. Linden

C

C. Martin

M

M. Messa

P

P. Nair

A

A. Nota

G

G. Ostlin

R

R. Parziale

A

A. Pellerin

M

M. Regan

E

E. Sabbi

E

E. Sacchi

D

D. Schaerer

D

D. Schiminovich

F

F. Shabani

F

F. Slane

J

J. Small

C

C. L. Smith

L

L. Smith

S

S. Taibi

D

D. Thilker

I

I. D. L. Torre

M

M. Tosi

J

J. Turner

L

L. Úbeda

S

S. V. Dyk

R

R. Walterbos

A

A. S. O. PhysicsAstronomy

C

C. I. O. Technology.

I

Infrared Processing

A

A. Center

D

D. Astronomy

T

The Oskar Klein Centre

S

S. University

G

G. Observatory

D

D. Physics

A

Astronomy

U

U. Toledo

S

Space Telescope Science Institute

U

U. Wyoming

D

D. O. Astronomy

U

U. Massachusetts

S

S. Observatory

U

U. Arizona

I

Institute for Computational Cosmology

C

C. F. Astronomy

D

D. Physics

U

University of Pisa

L

Louisiana State University

D

Dept. of AstronomyAstrophysics

U

University of California at Santa Cruz

A

Astronomical InstituteAnton Pannekoek''

U

U. Amsterdam

S

S. O. Physics

U

U. Exeter

I

Ibm Research Division

T

T. J. W. R. Center

V

Vassar College

U

U. Virginia

N

National Radio Astronomy Observatory

U

U. Wisconsin--Madison

Z

Zentrum fur Astronomie der Universitat Heidelberg

I

Institut fuer Astro- und Teilchenphysik Institute for Astronomy

A

A. Rechen-Institut

I

Instituto de Astrof'isica de Canarias

D

D. Astrof́isica

U

U. L. Laguna

L

L. Observatory

N

New Mexico State University

I

I. O. Astronomy

U

U. Cambridge

R

Research School for Astronomy

A

Astrophysics

A

Australian National University

E

E. Centre

E

Esa

V

Villanueva de la Cañada

U

U. Alabama

S

State University of New York at Geneseo

O

Observatoire de Geneve

U

U. Geneva

C

Columbia University

T

T. J. H. University

B

Bologna University

I

I. D. Astronomía

U

Universidad Autonoma de Mexico

U

Unidad Acad'emica en Ensenada

Format Sitasi

Cook, D., Lee, J., Adamo, A., Kim, H., Chandar, R., Whitmore, B. et al. (2019). Star cluster catalogues for the LEGUS dwarf galaxies. https://doi.org/10.1093/mnras/stz331

Akses Cepat

Lihat di Sumber doi.org/10.1093/mnras/stz331
Informasi Jurnal
Tahun Terbit
2019
Bahasa
en
Total Sitasi
37×
Sumber Database
Semantic Scholar
DOI
10.1093/mnras/stz331
Akses
Open Access ✓